ced7835c06
1. Very large RRSIG RRsets included in a negative cache can trigger an assertion failure that will crash named (BIND 9 DNS) due to an off-by-one error in a buffer size check. This bug affects all resolving name servers, whether DNSSEC validation is enabled or not, on all BIND versions prior to today. There is a possibility of malicious exploitation of this bug by remote users. 2. Named could fail to validate zones listed in a DLV that validated insecure without using DLV and had DS records in the parent zone. Add a patch provided by ru@ and confirmed by ISC to fix a crash at shutdown time when a SIG(0) key is being used.
61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/*
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* Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC")
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* Copyright (C) 2000, 2001 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/* $Id: timer.c,v 1.7 2007-06-19 23:47:16 tbox Exp $ */
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/*! \file */
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#include <config.h>
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#include <isc/result.h>
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#include <isc/time.h>
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#include <isc/timer.h>
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#include <dns/types.h>
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#include <dns/timer.h>
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#define CHECK(op) \
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do { result = (op); \
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if (result != ISC_R_SUCCESS) goto failure; \
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} while (0)
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isc_result_t
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dns_timer_setidle(isc_timer_t *timer, unsigned int maxtime,
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unsigned int idletime, isc_boolean_t purge)
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{
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isc_result_t result;
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isc_interval_t maxinterval, idleinterval;
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isc_time_t expires;
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/* Compute the time of expiry. */
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isc_interval_set(&maxinterval, maxtime, 0);
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CHECK(isc_time_nowplusinterval(&expires, &maxinterval));
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/*
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* Compute the idle interval, and add a spare nanosecond to
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* work around the silly limitation of the ISC timer interface
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* that you cannot specify an idle interval of zero.
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*/
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isc_interval_set(&idleinterval, idletime, 1);
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CHECK(isc_timer_reset(timer, isc_timertype_once,
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&expires, &idleinterval,
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purge));
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failure:
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return (result);
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}
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